An electric energy meter calibration device

Abstract

The utility model discloses a kind of electric energy meter calibration devices, it is related to electric energy meter technical field, including cabinet, the top of cabinet is equipped with vertical setting's vertical rod, the outside of vertical rod is fixed with tooth plate, the outside of vertical rod is slidably connected with movable frame, the side of movable frame is fixed with shell, the side of shell is equipped with electric energy meter body, the inside of shell is provided with the fixed component for fixing electric energy meter body, the side of shell is equipped with speed monitor main body, the utility model has beneficial effect for: by bearing plate and movable plate cooperation, the first clamping plate of movable plate side can be firmly fixed to electric energy meter body, this design can adapt to different specifications size's electric energy meter, ensure that electric energy meter position is stable in calibration process, will not be due to sway or displacement influence calibration accuracy, guarantee the accuracy and reliability of calibration work.

Description

Technical Field

[0001] This utility model relates to the field of electricity meter technology, and in particular to an electricity meter calibration device. Background Technology

[0002] Electricity meter calibration is the process of verifying and adjusting the measurement accuracy of electricity meters. In the power system, electricity meters are used to accurately measure users' electricity consumption, and their measurement results are crucial to the fairness and impartiality of electricity bill settlement. Due to factors such as long-term operation, environmental changes, and component aging, the measurement accuracy of electricity meters will gradually deviate from the standard value. Calibration is to adjust the indication error of electricity meters to within the allowable range using professional equipment and methods. Generally, standard power supplies and standard instruments are used as references to compare the measurement data of electricity meters. According to relevant standards and regulations, the parameters of electricity meters are corrected to ensure that they can accurately and reliably measure electrical energy and ensure the normal operation of electricity transactions.

[0003] In power systems, the accuracy of electricity meters directly affects the fairness and precision of electricity metering, and has a significant impact on key aspects such as electricity trade settlement, electricity management, and energy conservation. However, existing calibration devices have relatively fixed structures and poor adaptability to different specifications and models of electricity meters. During calibration, it is difficult to quickly and stably fix the electricity meters, which not only increases the preparation time before calibration but may also affect the accuracy of the calibration results due to insecure fixing. At the same time, the monitoring and data transmission of some key parameters during the calibration process are not convenient and efficient enough. For example, important parameters reflecting the operating status of electricity meters, such as rotational speed, lack real-time and accurate monitoring methods, and the monitoring data cannot be transmitted to subsequent processing equipment in a timely and accurate manner. This makes the calibration process cumbersome and inefficient, and it is difficult to meet the needs of large-scale electricity meter calibration work. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: An electricity meter calibration device includes a cabinet, a vertically arranged upright is installed on the top of the cabinet, a toothed plate is fixed on the outside of the upright, a movable frame is slidably connected to the outside of the upright, and a shell is fixed on one side of the movable frame; The energy meter body is installed on one side of the housing, and a fixing component for fixing the energy meter body is provided inside the housing. The speed monitoring instrument body is installed on one side of the housing, and a signal transmission port is provided on one side of the speed monitoring instrument body. A support platform is fixed on the inner wall of the cabinet, and a signal converter body and a digital millisecond meter body are respectively installed on the top of the support platform. The fixing assembly includes a support plate fixed to one side of the housing, a movable plate slidably connected to the inner wall of the housing, and a first clamping plate for fixing the electricity meter body fixed to one side of the movable plate.

[0006] In a preferred embodiment of the energy meter calibration device of this utility model, the outer side of the cabinet is hinged with two cabinet doors, and the bottom of the cabinet is provided with four sets of casters.

[0007] In a preferred embodiment of the energy meter calibration device of this utility model, the top of the cabinet has multiple sets of first wire-passing holes, the top of the cabinet is fixed with a wire frame, and the inner wall of the wire frame is provided with multiple sets of protective sleeves for protecting the wires.

[0008] In a preferred embodiment of the energy meter calibration device of this utility model, the bottom of the movable frame is fixed with a bottom shell, a motor is installed on the outer side of the bottom shell, a gear is rotatably connected to the inner wall of the bottom shell, and the shaft of the gear is fixedly connected to the output end of the motor, and the outer side of the gear is meshed with the inner wall of the gear plate.

[0009] In a preferred embodiment of the energy meter calibration device of this utility model, the inner wall of the movable frame is threaded with a first screw arranged horizontally, and one end of the first screw is attached to the outer side of the upright, and a first turntable is fixed to one end of the first screw.

[0010] In a preferred embodiment of the energy meter calibration device of this utility model, a vertically arranged threaded rod is rotatably connected to the inner wall of the outer shell, and the outer side of the threaded rod is threadedly connected to the inner wall of the movable plate, and a second turntable is fixed to the top of the threaded rod.

[0011] In a preferred embodiment of the energy meter calibration device of this utility model, the inner wall of the bearing plate has multiple sets of second through holes, the inner wall of the bearing plate is fixed with two sets of springs arranged horizontally, the inner wall of the bearing plate is slidably connected with a support rod, one end of the support rod is fixedly connected to one end of the spring, and one end of the support rod is fixed with a second clamping plate.

[0012] In a preferred embodiment of the energy meter calibration device of this utility model, the second clamping plate is fixed with insert plates on both sides, the bearing plate is fixed with limit frames on both sides, the inner wall of the limit frame is slidably connected to the outer side of the insert plate, the inner wall of the limit frame is threadedly connected with a second screw, the inner wall of the insert plate is provided with multiple sets of threaded holes, and the outer side of the second screw is threadedly connected to the inner wall of the threaded hole.

[0013] In summary, this utility model has the following beneficial effects: 1. Through the cooperation of the support plate and the movable plate, the first clamping plate on one side of the movable plate can firmly fix the electricity meter body. This design can adapt to electricity meters of different sizes and ensures that the position of the electricity meter is stable during the calibration process. It will not affect the calibration accuracy due to shaking or displacement, thus ensuring the accuracy and reliability of the calibration work.

[0014] 2. The combination of the top uprights, movable frame, and outer casing of the cabinet provides a suitable installation position for the electricity meter. The movable frame can slide along the uprights, making it easy to adjust the height of the electricity meter to meet the needs of different calibration scenarios. At the same time, the main body of the speed monitoring instrument installed on one side of the outer casing can monitor relevant speed data in real time and transmit the data through the signal transmission port. The main body of the signal converter and the main body of the digital millisecond meter on the support platform on the inner wall of the cabinet can convert and process the received signals to achieve accurate calibration of various parameters of the electricity meter, thereby improving the efficiency and automation of the calibration work. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a structural diagram of the electricity meter calibration device.

[0016] Figure 2 This is a structural diagram of the cabinet for the electricity meter calibration device.

[0017] Figure 3 This is a diagram of the pole structure for an electricity meter calibration device.

[0018] Figure 4 This is a structural diagram of the fixed components of an electricity meter calibration device.

[0019] Figure 5 for Figure 4 The enlarged structural diagram at point A is shown.

[0020] The following components are labeled in the diagram: 1. Cabinet; 2. Upright pole; 3. Gear plate; 4. Movable frame; 5. Outer shell; 6. Electricity meter body; 7. Fixing component; 71. Bearing plate; 72. Movable plate; 73. First clamping plate; 8. Speed ​​monitor body; 9. Signal transmission port; 10. Support platform; 11. Signal converter body; 12. Digital millisecond meter body; 13. Cabinet door; 14. Casters; 15. First wiring hole; 16. Wire frame; 17. Protective sleeve; 18. Bottom shell; 19. Motor; 20. Gear; 21. First screw; 22. First turntable; 23. Threaded rod; 24. Second turntable; 25. Second wiring hole; 26. Spring; 27. Support rod; 28. Second clamping plate; 29. ​​Insert plate; 30. Limiting frame; 31. Second screw; 32. Threaded hole. Detailed Implementation

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0024] Example 1: Reference Figures 1-5 This is the first embodiment of the present utility model. This embodiment provides an electricity meter calibration device, including a cabinet 1. A vertically arranged upright 2 is installed on the top of the cabinet 1. A toothed plate 3 is fixed on the outside of the upright 2. A movable frame 4 is slidably connected to the outside of the upright 2. A shell 5 is fixed on one side of the movable frame 4.

[0025] Cabinet 1 serves as the main frame of the entire calibration device, providing a foundation for the installation and support of other components. It protects the internal equipment and integrates the various components. The upright 2 acts as the sliding track for the movable frame 4, guiding its vertical movement and providing an installation position for the gear plate 3. The gear plate 3 is connected to the gear 20 through meshing. The rotation of the gear 20 drives the movable frame 4 to slide up and down on the upright 2, thereby adjusting the position of the movable frame 4. The movable frame 4 can move up and down along the upright 2, while also providing an installation position for the outer casing 5. By adjusting the position of the movable frame 4, the height of the outer casing 5 and the electricity meter body 6 can be changed.

[0026] An energy meter body 6 is installed on one side of the outer casing 5. A fixing component 7 for fixing the energy meter body 6 is provided inside the outer casing 5. A speed monitoring instrument body 8 is installed on one side of the outer casing 5. A signal transmission port 9 is provided on one side of the speed monitoring instrument body 8. A support platform 10 is fixed on the inner wall of the cabinet 1. A signal converter body 11 and a digital millisecond meter body 12 are respectively installed on the top of the support platform 10.

[0027] The outer casing 5 provides installation and protection space for the electricity meter body 6, while the internal fixing component 7 secures the electricity meter body 6. A speed monitoring unit 8 is also mounted on one side. The electricity meter body 6 is the calibration target of the entire calibration device, used to measure electricity-related parameters. The speed monitoring unit 8 monitors the speed information of the electricity meter body 6. The signal transmission port 9 transmits the signal monitored by the speed monitoring unit 8 for other devices to receive and process. The signal converter unit 11 receives the signal transmitted by the speed monitoring unit 8 and converts it for subsequent analysis and calibration. The digital millisecond meter unit 12 accurately measures time parameters and may be used to measure time-related parameters during the electricity meter calibration process. Regarding the relevant data and auxiliary calibration work, it should be noted that the working principle of the main body 8 of the speed monitoring instrument, the signal transmission port 9, the main body 11 of the signal converter, and the main body 12 of the digital millisecond meter in this case is the same as the working principle of the main body of the speed monitoring instrument, the signal transmission end, the digital millisecond meter, and the AC / DC signal converter in the electricity meter calibration device with authorized case application number 202122793987.5. The working principle is that during the calibration process, the voltage output end of the calibration source is connected to the voltage connection port of the electricity meter, the current output end of the calibration source is connected to the current connection port of the electricity meter, the voltage connection port of the electricity meter is connected to the AC signal acquisition end of the AC / DC signal converter, and the DC signal output end of the AC / DC signal converter is connected to the DC signal input end of the digital millisecond meter. The calibration source provides the electrical signal for the energy meter calibration process, the AC / DC signal converter provides the electrical signal for the digital millisecond meter, and the signal of the speed monitoring component can be provided by the battery inside the speed monitoring unit or by a separate connection to the calibration source. The speed monitoring unit and the signal transmitter form the function of an infrared speed meter, and the speed monitoring unit and the signal transmitter are connected by a wire. The wire has a certain length to meet the requirements of horizontal displacement stroke. This is existing technology and will not be elaborated further here.

[0028] The fixing component 7 includes a support plate 71 fixed to one side of the housing 5, a movable plate 72 slidably connected to the inner wall of the housing 5, and a first clamping plate 73 fixed to one side of the movable plate 72 for fixing the electricity meter body 6.

[0029] The support plate 71 is provided to provide a platform for placing the electricity meter body 6. The movable plate 72 can move up and down under the rotation of the threaded rod 23. The first clamping plate 73 is used to fix the electricity meter body 6. The position of the first clamping plate 73 can be adjusted by moving the movable plate 72 to clamp or release the electricity meter body 6.

[0030] Example 2: This is the second embodiment of the present invention, which is based on the previous embodiment.

[0031] Specifically, the outer side of the cabinet 1 is hinged with two cabinet doors 13, and the bottom of the cabinet 1 is equipped with four sets of casters 14.

[0032] The cabinet door 13 facilitates the operation, maintenance and repair of the equipment inside the cabinet 1, while also serving to prevent dust and protect the internal equipment. The casters 14 facilitate the movement and transportation of the entire calibration device, and the position of the device can be flexibly changed as needed.

[0033] Specifically, the top of the cabinet 1 has multiple sets of first wire holes 15, and the top of the cabinet 1 is fixed with a wire rack 16. The inner wall of the wire rack 16 is provided with multiple sets of protective sleeves 17 for protecting the wires.

[0034] The first wire hole 15 is provided for the wires to pass through the top of the cabinet 1, which can facilitate the connection of equipment inside and outside the cabinet 1 and make the wiring layout more reasonable. The wire rack 16 is provided to organize and support the wires, so that the wires are arranged in an orderly manner and avoid messy tangling, thus facilitating management and maintenance. The protective sleeve 17 can prevent the wires from being worn during movement or use and extend the service life of the wires.

[0035] Specifically, the bottom of the movable frame 4 is fixed with a bottom shell 18, a motor 19 is installed on the outside of the bottom shell 18, a gear 20 is rotatably connected to the inner wall of the bottom shell 18, and the shaft of the gear 20 is fixedly connected to the output end of the motor 19, and the outer side of the gear 20 is meshed with the inner wall of the gear plate 3.

[0036] The base shell 18 is designed to provide installation space for the motor 19 and gear 20, protect the motor 19 and gear 20, and also serve as support and fixation. The motor 19 is designed to provide power for the rotation of gear 20, which can rotate under the drive of the motor 19, thereby driving the movable frame 4 to move up and down.

[0037] Specifically, the inner wall of the movable frame 4 is threaded with a first screw 21 arranged horizontally, and one end of the first screw 21 is attached to the outer side of the upright 2. A first turntable 22 is fixed to one end of the first screw 21.

[0038] By rotating the first screw 21, one end of it can be tightly pressed against the upright 2, thereby fixing the position of the movable frame 4 on the upright 2. The first turntable 22 allows the operator to easily rotate the first screw 21 to adjust the fixed or loose state of the movable frame 4.

[0039] Example 3: This is the third embodiment of the present invention, which is based on the first two embodiments.

[0040] Specifically, the inner wall of the outer casing 5 is rotatably connected to a vertically arranged threaded rod 23, and the outer side of the threaded rod 23 is threadedly connected to the inner wall of the movable plate 72. A second turntable 24 is fixed to the top of the threaded rod 23.

[0041] The movable plate 72 can be moved up and down by rotating the threaded rod 23. The second turntable 24 allows the operator to easily rotate the threaded rod 23 and adjust the position of the movable plate 72 and the first clamping plate 73.

[0042] Specifically, the inner wall of the bearing plate 71 has multiple sets of second wire holes 25, the inner wall of the bearing plate 71 is fixed with two sets of horizontally arranged springs 26, the inner wall of the bearing plate 71 is slidably connected with a support rod 27, one end of the support rod 27 is fixedly connected to one end of the spring 26, and one end of the support rod 27 is fixed with a second clamping plate 28.

[0043] The second wire hole 25 is provided for the wire to pass through the bearing plate 71, thereby facilitating the connection of the electricity meter body 6 with other equipment. The spring 26 can use its elasticity to provide a certain reset effect for the second clamping plate 28, assisting in fixing the electricity meter body 6. The support rod 27 can drive the second clamping plate 28 to move under the action of the spring 26, realizing the initial fixation of the electricity meter body 6. The second clamping plate 28, in cooperation with the first clamping plate 73, fixes the electricity meter body 6 from different directions, ensuring the stable installation of the electricity meter body 6.

[0044] Specifically, insert plates 29 are fixed on both sides of the second clamping plate 28, and limit frames 30 are fixed on both sides of the bearing plate 71. The inner wall of the limit frame 30 is slidably connected to the outer side of the insert plate 29. The inner wall of the limit frame 30 is threadedly connected to the second screw 31. The inner wall of the insert plate 29 has multiple sets of threaded holes 32, and the outer side of the second screw 31 is threadedly connected to the inner wall of the threaded hole 32.

[0045] The position of the second clamping plate 28 can be adjusted by sliding the insert plate 29 within the limiting frame 30. Multiple sets of threaded holes 32 are formed on the inner wall of the insert plate 29 to cooperate with the second screw 31 to fix the position of the second clamping plate 28. The limiting frame 30 limits the sliding of the insert plate 29, ensuring the stability of the movement of the second clamping plate 28. The inner wall is threaded with the second screw 31 to fix the position of the insert plate 29 and the second clamping plate 28. By rotating the second screw 31 to insert it into different threaded holes 32, the second clamping plate 28 can be fixed in different positions to meet the fixing requirements of different sized electricity meter bodies 6. The multiple sets of threaded holes 32 provide multiple fixing position options for the second screw 31, facilitating the adjustment and fixing of the position of the second clamping plate 28 as needed.

[0046] Working principle: When using this electricity meter calibration device, firstly, according to the height requirement of the electricity meter body 6, the motor 19 is started. The motor 19 drives the gear 20 to rotate. Since the gear 20 is meshed with the toothed plate 3 fixed on the outside of the upright 2, and the movable frame 4 is slidably connected to the outside of the upright 2, the rotation of the gear 20 will drive the movable frame 4 to move up and down on the upright 2, thereby driving the outer shell 5 fixed on one side of the movable frame 4 and the electricity meter body 6 to reach the appropriate height. After the height is determined, the first screw 21 threaded to the inner wall of the movable frame 4 is rotated. Through the first turntable 22, one end of the first screw 21 is tightly pressed against the upright 2, and the position of the movable frame 4 is fixed by friction. Then, the second turntable 24 is rotated, which drives the threaded movable plate 72 to move downward, so that the movable plate 72 fixed on the movable plate 72 moves downward. 2. The first clamping plate 73 on one side approaches the energy meter body 6. At the same time, the spring 26 fixed on the inner wall of the bearing plate 71 pushes the support rod 27. The support rod 27 drives the second clamping plate 28 to approach the energy meter body 6 from the other side. The position of the second clamping plate 28 is adjusted by sliding the insert plate 29 within the limiting frame 30. Then, the second screw 31 is screwed into the appropriate threaded hole 32 on the insert plate 29 to fix the second clamping plate 28, thus achieving a stable fixation of the energy meter body 6. During the calibration process, the speed monitoring instrument body 8 monitors relevant speed information and transmits the signal through the signal transmission port 9. The signal converter body 11 installed on the support platform 10 receives and converts the signal. The digital millisecond meter body 12 accurately measures the time parameters, providing accurate data for the calibration of the energy meter body 6 and ensuring that the calibration work is completed accurately.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An electricity meter calibration device, comprising a cabinet (1), characterized in that: The top of the cabinet (1) is equipped with a vertically arranged upright (2), a toothed plate (3) is fixed on the outside of the upright (2), a movable frame (4) is slidably connected to the outside of the upright (2), and a shell (5) is fixed on one side of the movable frame (4). An energy meter body (6) is installed on one side of the outer casing (5). A fixing component (7) for fixing the energy meter body (6) is provided inside the outer casing (5). A speed monitoring instrument body (8) is installed on one side of the outer casing (5). A signal transmission port (9) is provided on one side of the speed monitoring instrument body (8). A support platform (10) is fixed on the inner wall of the cabinet (1). A signal converter body (11) and a digital millisecond meter body (12) are respectively installed on the top of the support platform (10). The fixing component (7) includes a support plate (71) fixed to one side of the housing (5), a movable plate (72) slidably connected to the inner wall of the housing (5), and a first clamping plate (73) for fixing the electricity meter body (6) fixed to one side of the movable plate (72).

2. The electricity meter calibration device as described in claim 1, characterized in that: The cabinet (1) has two cabinet doors (13) hinged to the outside of the cabinet (1), and four sets of casters (14) are provided at the bottom of the cabinet (1).

3. The electricity meter calibration device as described in claim 1, characterized in that: The top of the cabinet (1) has multiple sets of first wire holes (15), and the top of the cabinet (1) is fixed with a wire rack (16). The inner wall of the wire rack (16) is provided with multiple sets of protective sleeves (17) for protecting the wires.

4. The electricity meter calibration device as described in claim 1, characterized in that: The bottom of the movable frame (4) is fixed with a bottom shell (18), a motor (19) is installed on the outside of the bottom shell (18), a gear (20) is rotatably connected to the inner wall of the bottom shell (18), and the shaft of the gear (20) is fixedly connected to the output end of the motor (19), and the outer side of the gear (20) is meshed with the inner wall of the toothed plate (3).

5. The electricity meter calibration device as described in claim 1, characterized in that: The inner wall of the movable frame (4) is threaded with a first screw (21) arranged horizontally, and one end of the first screw (21) is attached to the outer side of the upright (2). One end of the first screw (21) is fixed with a first turntable (22).

6. The electricity meter calibration device as described in claim 1, characterized in that: The inner wall of the outer shell (5) is rotatably connected to a vertically arranged threaded rod (23), and the outer side of the threaded rod (23) is threadedly connected to the inner wall of the movable plate (72). The top end of the threaded rod (23) is fixed with a second turntable (24).

7. The electricity meter calibration device as described in claim 1, characterized in that: The inner wall of the bearing plate (71) has multiple sets of second through holes (25). The inner wall of the bearing plate (71) is fixed with two sets of springs (26) arranged horizontally. The inner wall of the bearing plate (71) is slidably connected with a support rod (27), and one end of the support rod (27) is fixedly connected to one end of the spring (26). One end of the support rod (27) is fixed with a second clamping plate (28).

8. The electricity meter calibration device as described in claim 7, characterized in that: The second clamping plate (28) has insert plates (29) fixed on both sides, and the bearing plate (71) has limit frames (30) fixed on both sides. The inner wall of the limit frame (30) is slidably connected to the outer side of the insert plate (29). The inner wall of the limit frame (30) is threadedly connected to a second screw (31). The inner wall of the insert plate (29) has multiple sets of threaded holes (32), and the outer side of the second screw (31) is threadedly connected to the inner wall of the threaded hole (32).

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